From: Andrew Morton <akpm@osdl.org>
Cc: Andrea Arcangeli <andrea@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---
kernel/fork.c | 4 ++++
mm/page-writeback.c | 7 ++++---
2 files changed, 8 insertions(+), 3 deletions(-)
diff -puN kernel/fork.c~per-task-predictive-write-throttling-1-tweaks kernel/fork.c
--- devel/kernel/fork.c~per-task-predictive-write-throttling-1-tweaks 2005-09-14 21:13:53.000000000 -0700
+++ devel-akpm/kernel/fork.c 2005-09-14 21:13:53.000000000 -0700
@@ -962,6 +962,10 @@ static task_t *copy_process(unsigned lon
p->syscw = 0; /* I/O counter: write syscalls */
acct_clear_integrals(p);
+ p->balance_dirty_state.future_dirty = 0;
+ p->balance_dirty_state.last_sync = 0;
+ p->balance_dirty_state.rate_limit = 0;
+
p->it_virt_expires = cputime_zero;
p->it_prof_expires = cputime_zero;
p->it_sched_expires = 0;
diff -puN mm/page-writeback.c~per-task-predictive-write-throttling-1-tweaks mm/page-writeback.c
--- devel/mm/page-writeback.c~per-task-predictive-write-throttling-1-tweaks 2005-09-14 21:13:53.000000000 -0700
+++ devel-akpm/mm/page-writeback.c 2005-09-14 21:13:53.000000000 -0700
@@ -262,8 +262,9 @@ static void balance_dirty_pages(struct a
pdflush_operation(background_writeout, 0);
}
-static int task_balance_dirty_pages(struct address_space *mapping) {
- struct balance_dirty_state * state;
+static int task_balance_dirty_pages(struct address_space *mapping)
+{
+ struct balance_dirty_state *state;
int need_balance_dirty;
unsigned long future_dirty;
int rate_limit;
@@ -298,7 +299,7 @@ static int task_balance_dirty_pages(stru
if (need_balance_dirty)
balance_dirty_pages(mapping, future_dirty);
- out:
+out:
return need_balance_dirty;
}
_